Apparatus for generating hydrogen by the electrolysis of water comprising an electrolytic cell having a cathode and an anode separated by a solid electrolyte, an electrical power supply connected to the cell for applying a voltage across the cathode and anode, a water reservoir connected to the cell...http://www.google.com.au/patents/US5037518?utm_source=gb-gplus-sharePatent US5037518 - Apparatus and method for generating hydrogen and oxygen by electrolytic dissociation of water